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LM2576-12WU The Microchip Technology LM2576-12WU is a 12V, 3A step-down buck regulator. It operates at a 52kHz switching frequency and is designed for surface mount applications.
Mfr Part #:

LM2576-12WU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology LM2576-12WU is a 12V, 3A step-down buck regulator. It operates at a 52kHz switching frequency and is designed for surface mount applications.
✓ Total Stock: 3 pcs
$ Price Range: $0.16

LM2576-12WU Available from 1 distributor

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✓ Non-Authorised
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3 pcs
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LM2576-12WU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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LM2576-12WU Description

Short technical summary and product information.

The LM2576-12WU from Microchip Technology is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. This fixed 12V output version is capable of driving a 3A load with excellent line and load regulation.

 

Designed for simplicity, it requires a minimum number of external components and includes internal frequency compensation and a fixed-frequency oscillator operating at 52kHz. The device offers an efficiency replacement for linear regulators, often eliminating the need for a heat sink. It features a wide input voltage range from 4V to 40V.

 

This regulator is housed in a TO-263-5 package, suitable for surface mount applications. It includes essential protection features such as cycle-by-cycle current limiting and thermal shutdown for reliability under fault conditions. The LM2576 series is ideal for various applications including on-card switching regulators and efficient pre-regulation for linear regulators.

LM2576-12WU Quick Information

Product Type: DC DC Switching Regulator
Series: LM2576
Canonical Name: LM2576-12WU 12V 3A Buck Regulator
Subcategory: DC DC Switching Regulators

LM2576-12WU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM2576-12WU Estimated Pricing

Qty Low High
1+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2576-12WU Features

  • Fixed 12V output voltage.
  • Guaranteed 3A output current.
  • Wide 4V to 40V input voltage range.
  • 52kHz fixed frequency oscillator.
  • Surface mount TO-263-5 package.

LM2576-12WU Applications

  • Simple step-down buck regulator.
  • Efficient pre-regulator for linear regulators.
  • On-card switching regulators.
  • Positive to negative converter.

LM2576-12WU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM2576-12WU?

12V fixed output.

What is the input voltage range?

4V to 40V.

What is the output current rating?

3A.

What is the switching frequency?

52kHz.

What topology does the LM2576-12WU use?

Buck (step-down) topology.

What is the operating temperature range?

-40°C to 125°C junction temperature.

What package is the LM2576-12WU available in?

TO-263-5 (D²Pak with 5 leads plus tab).

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